Gas-bracket



Pat ented Mar. 7, I899.

E. A. BURNS.

GAS BRACKET.

(Application filed Dec. 13, 1897.)

(No Model.)

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UNITED STATES PATENT OFFICE,

ED'WARD A. BURNS, OF HARTFORD, CONNECTICUT.

GAS-BRACKET.

SPECIFICATION forming part of Letters Patent No. 620,692, dated March 7, 1899.

Application filed December 13, 1897. Serial No. 661,595. (No model.)

To all whom it may concern:

Be it known that I, EDWARD A.'BURNS, a citizen of the United States, residing in Hartford, in the county of Hartford and State of Connecticut, have invented certain new and useful Improvements in Gas Brackets, of which the following is a specification.

This invention relates to improvements in gas-brackets; and it has for its main object the provision of an improved device of this class in which the fiow of gas through the passages or channels in the arms thereof will be controlled by the position, and hence by the movement, of the usual swinging arm of the bracket In carrying my invention into effect I provide, in connection with the fixed and swingin g arms of a gas-bracket of any suitable type, a valve controlling the flow of gas and itself controlled by the movement of the swinging arm, the construction being such that when the swinging arm of the bracket is in one position-as, for example, when it is projecting straight from a wall there will be a full flow of gas and the light will be turned on full, while when this swinging arm is turned around almost to the wall the fiow of gas will be reduced to such an extent that the light will be turned down low. The type of valve employed for the purpose of reducing the flow of gas, and hence the candle-power of the light, is a simple form of plug-valve, the valve proper of which forms part of the swinging arm of the bracket, while the valve-body in which the plug is seated constitutes a portion of the fixed arm of said bracket. The valve proper has a receiving-port or inlet opening of considerably-greater length in the direction of movement of the swinging bracket-arm, and hence of the valve proper, than the corresponding opening in the fixed arm projecting from the wall or other stationary member, this being for the purpose of permitting the movable arm to be swung around a considerable distance before the fiow of gas is reduced. Moreover, when this opening or valve-port is properly positioned with respect to the delivery-opening in the fixed bracket-arm the movable arm may be turned toward the wall in either direction that is, from either side of the fixed arm. It will be obvious that when employing a supply-controlling valve of this type some means should be provided for preventing too great a movement of the bracket, which might result in reducing the flow of gas to such an extent that the light might be extinguished before the limit of throw of the movable bracket-arm was reached, and as this would result in the escape of the gas and would destroy the usefulness of the device I have illustrated herein in connection therewith suitable means which constitute an essential feature of the invention for preventing too great a reduction of the flow. This means comprises cooperative stop-faces on the fixed arm and the swinging bracket-arm, which will serve to stop the turning of the latter at a predetermined point, preferably in either direction from a central position.

In the drawings accompanying and form'- ing part of this specification, Figure 1 is a perspective view of a gas-bracket constructed in accordance with my invention and illustrating the positions of the parts when the gas is turned on full; Fig. 2 is an enlarged sec tional detail of a portion of the same, illustrating the positions of the stream control ling parts as seen in Fig. 1. Fig. 3 is a per= spective view corresponding to Fig. 1 and shows the parts in the positions they assume when the light is turned down low, Fig. lis a view similar to Fig. 2, illustrating the parts in the positions in which they are shown in Fig. 3 wit-h a reduced and almost cut-off flow of gas. 7

Similar characters designate like parts in all the figures of the drawings.

As to the arms thereof, my improved gasbracket may be of any suitable or usual construction. One form thereof is shown herein, and in this type of bracket the fixed arm is designated in a general way by f and the swinging arm by s.

The fixed arm may project through a wall in the usual manner and may constitute the delivery end of any suitable gas=pipe, and in connection therewith I'will of course make use of the ordinary gas-cock 2, by means of which the gas may be turned on or turned off entirely when it is desired to put out the light. In connection with this valve I will employ another gas-controllin g valve substantially of the type hereinbefore indicated, which Valve will regulate the size, and hence the candlepower, of the light burning at the usual tip of a gas-burner,'such as b, of any suitable type. It should be understood, of course, that my improved gas-controlling valve is especially designed and intended for use in connection with a gas-bracket in which the gas is burning and that the flow of gas will always be shut olf by the usual gas-cock 1'" when the gas is not lighted.

In the construction illustrated in the drawings of this specification the novel features of the invention are embodied and reside in the construction of the two arms of the bracket, the valve by means of which the burning light is regulated being carried by the bracket-arms at the point of connection of these two parts.

In the preferred construction the-fixed arm 2o fof the bracket has at the extreme outerend thereof a valve-body 3, the interior of which communicates with the usual gas-delivering passage or channel 4 in the fixed arm. The valve-body 3 is bored, substantially as shown in Figs. 2 and 4, to form a smooth seat in which will work a valve or plug carried by the swinging arm of the bracket. Both the bore of the valve-body and the periphery of the plug-valve will preferably taper, as indicated in Figs. 1 and 3, in order that the valve may be wedged firmly in position and leakage of the gas prevented.

In order to hold the valve firmly toits seat, I make use of any suitable holding means, such as a screw 6 and washer 7 of the usual type.

The valve proper is indicated by 5 and constitutes in this case a right-angled extension of the bracket-arm s. It will have,preferably, the usual axial bore or opening 5,communieating with the corresponding bore of the arm or pipe 3, and will also have a port or inletopening, such as 5, adapted to communicate with the bore 4 in the fixed arm or pipe f. This port 5" is of greater length in the direction of movement of the valve than the diam eter of the opening 4, it being in this instance of a length considerably more than twice the diameter of said opening 4. By forming the valve-port in this manner it will be apparent that the swinging arm of the bracket maybe turned a considerable distance without afiecting the flow of gas to the burner and that the length of the arc through which the swinging arm moves will be dependent upon the size of the cooperating openings with respect to each other. In this case the walls of the port 5 diverge from theaxial bore 5 to form a flaring opening or valve-port of such size and so positioned that the swinging arm may be turned to either side of the central position (shown in Fig. 1) and the fiow of gas reduced and the lightturned down low in the manner shown in one of these positions illustrated in Fig. 3.

- It will be seen by referring to Figs. 2 and 4 that as the opening 4 is disposed centrally of the fixed pipe and as the axial line of the swinging arm 5 passes through the center of the valve-port 5 the movable arm will in this case swing through exactly equal arcs from the central position (indicated in Fig. 1) to either side of such position to turn down the gas to the extent represented in Fig. 3.

In order to regulate with precision the flow of the gas, I employ, in connection with the devices just described, suitable members which will coact to limit the turning movement of the arm 3.

In the construction illustrated stops should of course be provided to limit this movement at either side of the central position, and hence the swinging arm carries a stop, such as 8, adapted to abut against either one of a pair of stop-faces disposed at diametrically opposite points on the valve-body 3. One of these stops is indicated by 9. By properly positioning said stops it will be apparent that the size of the light when the gas is turned down low may be regulated at will within limits; but of course these stops should be so positioned that the light will never be turned down by the swinging of the bracket to a point where the light will go out entirely.

A gas-bracket of this type is especially useful where the bracket projects out from the wall into the path of persons passing by the same. Especially is this the casein hallways where night-lights are used, and in such situations my improved bracket has two functions, one of which is that it may be turned on full ordown low, as desired, and that when turned down the bracket will be close to the wall and out of the way of through the hall.

Another important advantage that results from the use of this improved bracket is that while when gas-brackets of the ordinary type are turned close to a papered wall or to woodwork the paper or Wood is liable to be scorched or burned. turned down to such an extent that there is but a very small flame when the swinging arm approaches the wall, and hence the danger of charring or burning adjacent inflammable material of the wall or support is practically obviated.

Having described my invention, I claim A gas-bracket comprising two arms, one of which is movable relatively to the other; a burner carried by the movable arm; a valve, the plug of which has a port of greater length than the supply-opening, operated directly by said movable arm, so as to be non-effective during a partial swinging movement of said arm; and means for limiting the operation of said valve sufliciently to permit the material reduction, but not the complete cutolf, of the gas thereby.

EDWARD A. BUR-NS.

persons passing With this bracket the light is 

